i know that cheat is bad to every people,and my brother was an idiot when he installed ZGH hack..but now he dont play this game...and i wanna play, but i can't beacuse he was a f u c k i n g idiot and played with ZGH hack...

If I unbanned every person who said "My ____ did it", there probably wouldn't be any bans. If what you say is true, then I'm sorry. Somebody cheated on that computer, and that computer has been banned. Part of the reason for the short first-time bans is so potentially innocent players aren't banned for too long. You'll just have to wait it out.